Agile Method Unique

An Introduction toAgile SCRUM Methodology

PresumptionsThe audience is well aware of traditional software development methodologies like Waterfall Model, Iterative models, etc.

AgendaIntroductionWhat is Agile Methodology?What is Scrum?History of ScrumFunctionality of ScrumComponents of ScrumScrum RolesThe ProcessScrum ArtifactsScaling ScrumQ & A Session

Introduction

Classical methods of software development have many disadvantages: huge effort during the planning phase poor requirements conversion in a rapid changing environment treatment of staff as a factor of production

New methods: Agile Software Development Methodology

What is Agile ?Agile proponents believeCurrent software development processes are too heavyweight or cumbersomeToo many things are done that are not directly related to software product being producedCurrent software development is too rigidDifficulty with incomplete or changing requirementsShort development cycles (Internet applications)More active customer involvement neededCMM focuses on process

ContdAgile methods are considered LightweightPeople-based rather than Plan-basedSeveral agile methodsNo single agile methodXP most popularNo single definitionAgile Manifesto closest to a definitionSet of principlesDeveloped by Agile Alliance

Agile Manifesto A Statement of ValuesIndividuals and interactions over processes and toolsWorking software over comprehensive documentationCustomer collaboration over contract negotiationResponding to change over following a plan http://www.agilemanifesto.org

Agile MethodsAgile methods:ScrumExtreme ProgrammingAdaptive Software Development (ASD)Dynamic System Development Method (DSDM)Agile Alliance (www.agilealliance.org)A non-profit organization promotes agile development

Scrum in 100 wordsScrum is an agile process that allows us to focus on delivering the highest business value in the shortest time. It allows us to rapidly and repeatedly inspect actual working software (every two weeks to one month).The business sets the priorities. Our teams self-manage to determine the best way to deliver the highest priority features. Every two weeks to a month anyone can see real working software and decide to release it as is or continue to enhance for another iteration.

History of Scrum1995: analysis of common software development processes not suitable for empirical, unpredictable and non-repeatable processes Design of a new method: Scrum by Jeff Sutherland & Ken SchwaberEnhancement of Scrum by Mike Beedle & combination of Scrum with Extreme Programming

1996:introduction of Scrum at OOPSLA conference

2001:publication Agile Software Development with Scrum byKen Schwaber & Mike Beedle

Successful appliance of Scrum in over 50 companiesFounders are members in the Agile Alliance

CharacteristicsSelf-organizing teamsProduct progresses in a series of month-long sprintsRequirements are captured as items in a list of product backlogNo specific engineering practices prescribedUses generative rules to create an agile environment for delivering projectsOne of the agile processes

How Scrum Works?

SprintsScrum projects make progress in a series of sprintsAnalogous to XP iterationsTarget duration is one month+/- a week or twoBut, a constant duration leads to a better rhythmProduct is designed, coded, and tested during the sprint

Sequential vs. Overlapping Dev.RequirementsDesignCodeTest

No changes during the sprintPlan sprint durations around how long you can commit to keeping change out of the sprint

Scrum FrameworkRoles : Product Owner, ScrumMaster, Team Ceremonies : Sprint Planning, Sprint Review, Sprint Retrospective, & Daily Scrum Meeting Artifacts : Product Backlog, Sprint Backlog, and Burndown Chart

Product OwnerDefine the features of the productDecide on release date and contentBeresponsible for the profitability of the product (ROI)Prioritize features according to market value Adjustfeatures and priority every iteration, as needed Accept or reject work results.

The Scrum MasterRepresents management to the projectResponsible for enacting Scrum values and practicesRemoves impediments Ensure that the team is fully functional and productiveEnable close cooperation across all roles and functionsShield the team from external interferences

Scrum TeamTypically 5-10 peopleCross-functionalQA, Programmers, UI Designers, etc.Members should be full-timeMay be exceptions (e.g., System Admin, etc.)Teams are self-organizingWhat to do if a team self-organizes someone off the team??Ideally, no titles but rarely a possibilityMembership can change only between sprints

CeremoniesSprint Planning MeetingSprintDaily ScrumSprint Review Meeting

Spring Planning MeetingSprint PlanningMeetingSprint BacklogProduct OwnerScrum TeamManagementCustomersSprint Goal

Parts of Sprint Planning Meeting1st Part:Creating Product Backlog Determining the Sprint Goal. Participants: Product Owner, Scrum Master, Scrum Team2nd Part:Participants: Scrum Master, Scrum TeamCreating Sprint Backlog

Pre-Project/Kickoff MeetingA special form of Sprint Planning MeetingMeeting before the begin of the Project

SprintA month-long iteration, during which is incremented a product functionalityNO outside influence can interfere with the Scrum team during the SprintEach Sprint begins with the Daily Scrum Meeting

Daily ScrumParametersDaily15-minutesStand-upNot for problem solvingThree questions:What did you do yesterdayWhat will you do today?What obstacles are in your way?Chickens and pigs are invitedHelp avoid other unnecessary meetingsOnly pigs can talk

Daily ScrumIs NOT a problem solving sessionIs NOT a way to collect information about WHO is behind the scheduleIs a meeting in which team members make commitments to each other and to the Scrum MasterIs a good way for a Scrum Master to track the progress of the Team

Scrum FAQsWhy daily?How does a project get to be a year late?One day at a time. Fred Brooks, The Mythical Man-Month.Can Scrum meetings be replaced by emailed status reports?NoEntire team sees the whole picture every dayCreate peer pressure to do what you say youll do

Sprint Review MeetingTeam presents what it accomplished during the sprintTypically takes the form of a demo of new features or underlying architectureInformal2-hour prep time ruleParticipantsCustomersManagementProduct OwnerOther engineers

Sprint Retrospective MeetingScrum Team onlyFeedback meetingThree questionsStartStopContinueDont skip for the first 5-6 sprints!!!

Product BacklogA list of all desired work on the projectUsually a combination of story-based work (let user search and replace)task-based work (improve exception handling)List is prioritized by the Product OwnerTypically a Product Manager, Marketing, Internal Customer, etc.

Product BacklogRequirements for a system, expressed as a prioritized list of Backlog ItemsIs managed and owned by a Product OwnerSpreadsheet (typically)Usually is created during the Sprint Planning MeetingCan be changed and re-prioritized before each PM

Sample Product Backlog

From Sprint Goal to Sprint BacklogScrum team takes the Sprint Goal and decides what tasks are necessaryTeam self-organizes around how theyll meet the Sprint GoalManager doesnt assign tasks to individualsManagers dont make decisions for the teamSprint Backlog is created

Sprint Backlog during the SprintChangesTeam adds new tasks whenever they need to in order to meet the Sprint GoalTeam can remove unnecessary tasksBut: Sprint Backlog can only be updated by the teamEstimates are updated whenever theres new information

Sprint BacklogA subset of Product Backlog Items, which define the work for a SprintIs created ONLY by Team membersEach Item has its own statusShould be updated every day

Sprint BacklogNo more than 300 tasks in the listIf a task requires more than 16 hours, it should be broken downTeam can add or subtract items from the list. Product Owner is not allowed to do it

Sample Sprint Backlog

Sprint Burn down ChartDepicts the total Sprint Backlog hours remaining per dayShows the estimated amount of time to release Ideally should burn down to zero to the end of the SprintActually is not a straight lineCan bump UP

Information Radiator"Two characteristics are key to a good information radiator. The first is that the information changes over time. This makes it worth a person's while to look at the display... The other characteristic is that it takes very little energy to view the display."

Sprint Burndown Chart

Chart4

752

762

664

619

304

264

180

104

20

Date

Remaining Effort in Hours

Progress

Sprint 6

Sprint Start Date:5/3/02

Sprint End Date:5/31/02

Working Days Left:4Planned at start752

Added60

Days Left in SprintRemoved48

Remaining Effort in HoursLeft at end150

Date logged50%90%WhoDescription5/3/025/8/025/10/025/14/025/17/025/22/025/24/025/29/025/31/02Velocity80%

Total Estimated Hours:75276266461930426418010420

3-May-2002---Import---00%

3-May-2002TGCode issues2424888800

3-May-2002KHDatabase Issues84020200000

3-May-2002KHLearn how to run it22000000

3-May-2002---Pedigree Manager (no Haplotyping)--------43%

AMRamp up / integrate control2424000000

AMLoad pedigree (without adornments)1616000000

AMCreate derived kindreds--------

AMGet selected subjects44000000

AMPersist new derived kindred121212120000

AMAdornments / Various--------

AMToggle legend22222222

AMToggle proband22222222

AMToggle affection status22220000

AMToggle adornments22220000

AMZoom in/out44400000

AMAdd/remove affection status w/quadrants161616120000

AMAdd/remove study variables161616120000

AMAdd remove markers161616120000

AMView subject detail88800000

3-May-2002---Misc--------3259%

3-May-2002TGAdd confirm box when deleting container11110000

3-May-2002JMChange com.genomica to com.visualizeinc60000000

3-May-2002AMChange Product Name44444000

3-May-2002JMDetermine memory requirements88888884

3-May-2002JMRemove saved analysis from Analysis Tab33300000

3-May-2002AMInvoke PDF from User's Guide menu item.1616000000

3-May-2002JMImprove icons in tree (and elsewhere?). Use Linkmapper161616168888

17-May-2002KHRewrite DmObject delete20202020

3-May-2002---Build Environment--------44%

3-May-2002MCAnt for client80000000

3-May-2002MCAnt for server323232320000

3-May-2002JMChange jar names40000000

3-May-2002MCIncorporate obfuscator88888000

3-May-2002TGDesign versioning scheme for client, server, and database88880000

3-May-2002KHImplement versioning scheme for database161616162222

3-May-2002AMRuntime checking of version info88888222

3-May-2002AMGet rid of unused server classes161616160000

3-May-2002---Demo Data--------4258%

3-May-2002CKCreate script to import UCLA data4036363020202020

3-May-2002CKWork with Janice to script the demo1616161616666

3-May-2002CKCreate supplemental data to support Janice's demo script1616161616161616

3-May-2002---Install--------4030%

3-May-2002JMClient121212120000

3-May-2002JMServer121212122222

3-May-2002MCDatabase6060606060404030

3-May-2002KHDatabase404040400000

3-May-2002KHDemo Data88888888

3-May-2002---Write Admin Program--------00%

3-May-2002JMCreate and Update users161616160000

3-May-2002JMActive/Inactivate Users88880000

3-May-2002---Analysis Manager--------52100%

3-May-2002TGWhen items are removed from an analysis, they should show up again in the pick list in lower 1/2 of the analysis tab44444444***

3-May-2002CKDecide if we drop Inheritance checking as separate item (Read up on PedCheck)88888888

3-May-2002CKImprove Test Plan2424242424242424

3-May-2002---FastLink and Linkage--------

3-May-2002CKMore reading88888888

3-May-2002CKGet some "average" data run through these analyses88888888

3-May-2002---Additional Visualization Capabilities--------2420%

3-May-2002TGDetermine list of views that are valid for different query types1616000000

3-May-2002TGAllow list of valid views to be loaded from he database1616000000

3-May-2002TGSeparate view configuration from filter configuration2424000000

3-May-2002TGAssociate views with required attributes (to feed visualization)2424000000

3-May-2002TGIncorporate additional views40400200000

15-May-2002TGDetermine initial visualization requirements3200000

15-May-2002TGDoc & review proposed workflows220000

15-May-2002TGRestructure query setup to support views24240000

15-May-2002---Implement "add view" functionality--------

15-May-2002---Add generic view types--------

15-May-2002TGAttribute selection (discrete attribs only)12120000

15-May-2002TGPopulate graph's data model for each type440000

15-May-2002TGAdd the new view tab880000

15-May-2002TGDynamically update view880000

15-May-2002TGMake graphs aesthetically pleasing888

15-May-2002---Add frequency view types-------16

15-May-2002TGAllele freqs for a given marker (calc freqs)1212121212-

15-May-2002TGProbability heat map for marker alleles/pheno1212121212-

15-May-2002TGChi-squared analysis1212121212-

15-May-2002TGSave analysis config with views16161616160

3-May-2002---Query--------00%

3-May-2002JMRun all queries in their own threads323210100000

3-May-2002AMDocument tests88888880

Hours Not AvailPersonHours% of 100%

TBD00000000000000000

16TG1570%1571571631516472064120000000450%

AM1760%1761761169224140146000000044%

JM1170%1171078582181801814000000056%

KH740%741068484303003030000000094%

CK1200%12011611611010090090900000000281%

16MC1080%1081001001006840040300000000250%

Sprint 6

Date


Progress

Sprint 7


Sprint End Date:???

Working Days Left:10Planned at start752

Added60

Days Left in SprintRemoved48


Item #50%90%WhoDescription6/9/02Velocity80%


Icons-

Get them drawn6

Put new icons into app8

Installation-

Write DBInstall program30

Write batch file or similar to install everything

Visualization-

Make graphs aesthetically pleasing8

Add frequency view types16

Obfuscation-

Select tool16

Obfuscate code24

Update build process with obfuscation8

Additional deletes (found doing DMObject)

By 6/14/02

---Running queries in threads-

---Test-

AMCanceling a running query

AMMoving a query to the background

AMFreeing database connections

29JMBugfix

30---Pedigree Viewer-

31---Test-

32JMAdding/Editing adornments

33JMCreating derived kindred

34JMHandling invalid pedigrees

35JMView manipulation (zoom, drag, etc.)

36AMBugfix

37---Import/Export (XML)-

38---Test-

39KHImport

40Export

41TGBugfix

42---By 6/21/02-

43---Export to SAS/CSV-

44---Test-

45KHExport entire data container

46KHExport from result set

47AMBugfix

48---Query Configuration-

49---Test-

50AMSaving/Loading queries

51AMDrag/Drop Data Sources

52AMAttribute Selection/Ordering

53AMSpecifyng filters/sort order

54AMAdding/Removing/Editing Views

55JMBugfix

56---Container Management-

57---Test-

58JMAdd/Edit/Delete Genetic Studies/Data Container (focus on delete)

59JMActive Genotypes/PhenoTypes

60AMBugfix

61---Cluster Management-

62---Test-

63JMCreate Clusters from cluster contents

64JMCreate Clusters from query results

65JMAdd/Remove items from cluster

66JMRename/Delete Clusters

67AMBugfix

68---By 6/28/02-

69---Study Variable Manager-

70---Test-

71KHBasic variable types (number, sting, date, etc.)

72KHDerived Code

73KHDerived Number

74KHAffection Status

75KHLiability Class

76AMBugfix

77---Query Results-

78---Test-

79AMFrequency Histogram

80AM2D Scatter

81AM3D Scatter

82AMHeat Map

83AMTabular View (paging, clustering, export)

84AMSummary View (validation of counts)

85JMBugfix

86---By 7/5/02

87---Installation-

88---Test-

89KHDatabase Install/Update

90KHApplication Install/Update

91MCBugfix

92---User Admin-

93AMTest4

94JMBugfix2

95---Data Editors-

96---Test-

97AMIn-Cell

98AMEnum

99AMCustom (Genotype, Twins, etc.)

100JMBugfix

101---Explorer-

102---Test-

103JMNavigators & View

104JMMenus

105JMView Titles

106JMTear-off views

107AMBugfix

108---Miscellaneous-

109---Test-

110Version Checking

111Subject Detail View

112Online Help

113View Cluster Information

114Task Manager

115Bugfix

116

117

118---Analysis Managers-

119---Test-

120---Linkage-

121?Preparation and import of test data

122?Validation of export file formats

123?Execution of each analysis tool

124?Validation of analysis tool output

125---Simwalk-





130---Genehunter-





135---Inheritance Checking-





140---Crimap-





145TGBugfix


TBD00000000000000000

16TG00%0000000000000000

AM40%4000000000000000

JM20%2000000000000000

KH00%0000000000000000

CK00%0000000000000000

40MC00%0000000000000000

Running queries in threads

Canceling a running query

Moving a query to the background

Freeing database connections

Analysis Managers (for each format type)

Preperation and import of test data

Validation of export file formats

Execution of each analysis tool

Validation fo analysis tool output

Query Configuration

Saving/Loading queries

Drag/Drop Data Sources

Attribute Selection/Ordering

Specifyng filters/sort order

Adding/Removing/Editing Views

Pedigree Viewer

Adding/Editing adornments

Creating derived kindred

Handling invalid pedigrees

View manipulation (zoom, drag, etc.)

Study Variable Manager

Basic variable types (number, sting, date, etc.)

Derived Code

Derived Number

Affection Status

Liability Class

Import/Export (XML)

Export to SAS/CSV

Export entire data container

Export from result set

Container Management

Add/Edit/Delete Genetic Studies/Data Container (focus on delete)

Active Genotypes/PhenoTypes

Installation

Database Install/Update

Application Install/Update

User Admin

Query Results

Frequency Histogram

2D Scatter

3D Scatter

Heat Map

Tabular View (paging, clustering, export)

Summary View (validation of counts)

Cluster Management

Create Clusters from cluster contents

Create Clusters from query results

Add/Remove items from cluster

Rename/Delete Clusters

Data Editors

In-Cell

Enum

Custom (Genotype, Twins, etc.)

Explorer

Navigators & View

Menus

View Titles

Tear-off views

Miscellaneous

Version Checking

Subject Detail View

Online Help

View Cluster Information

Task Manager

Sprint 7

0

0

0

0

0

0

0

0

0

Date


Progress

Beckman2


Sprint End Date:???

Working Days Left:101600 programmer hours12013.3333333333Planned at start752

Added60

11781855Days Left in SprintRemoved48


Item #50%90%WhoDescription6/9/02Velocity80%

Total Estimated Hours:574AMJMTGMCKHTWNP

9--Integrated Subjects/Subject Ids-

10--Client0000000

113256Create/Edit/Delete Subject Screen(s)400000000

12--Server0000000

132432Scientific Object Editor (CRUD)0000000

141632PL/SQL (Find/Create/Update/Delete)0000000

152440COM Service0000000

16CEQ Genotype Push to VG0000000

171624COM Service0000000

18816PL/SQL (Insert/Update Gentotype)0000000

192040Import Subject W/O Pedigree0000000

20--Analysis Round-Tripping0000000

21--Scope/Requirement Definition0000000

223248Determine supported format types/versions5348990000000

233248Acquire and import data to test all format types/configurations0000000

243248Determine schema mods required to support imported data0000000

253248Determine specs for all results formats0000000

263248Determine visualization requirements0000000

273248Determine supported command line options for each tool0000000

28--Client0000000

292436Configure command line params for tools0000000

30816View raw results0000000

3180160Visualize results (requirements unknown)0000000

32--Server0000000

333248Run external analysis tools0000000

3460120Parse/validate results0000000

352432Detect/handle invalid results0000000

363256Implement schema mods0000000

37--PL/SQL0000000

384880Store imported results0000000

393260Retrieve results for visualization0000000

4023Retrieve raw results for viewing0000000

412432Store tool configuration options0000000

42--Obfuscation0000000

431624Select tool0000000

442440Obfuscate code0000000

4588Update build process with obfuscation0000000

46--Visualization Finishing Touches0000000

472432Create clusters from selected items0000000

48812Add selected items to existing cluster0000000

491624Add banding to 3D scatter0000000

50--Frequency Manager0000000

513280Determine graphing requirements for each frequency visualization0000000

523264View allele frequencies as numerical results0000000

536480Test allele frequencies for HW Equilibrium0000000

548080View combined allele frequency distributions for all markers in a cluster0000000

554880Compare allele frequency distributions for two clusters0000000

564840View/compare allele frequencies for two markers0000000

573240DMObject Delete (Test/Deploy)0000000

584880Check and fix Memory Leaks0000000

59??Online Help0000000

60??User's Guide0000000

610000000

620000000

63ADD ITEMS FROM TOD'S EMAIL0000000

640000000

650000000

660000000

670000000

680000000

690000000

700000000

710000000

720000000

730000000

740000000

750000000

760000000

770000000

780000000

790000000

800000000

810000000

820000000

830000000

840000000

850000000

860000000

870000000

880000000

890000000

900000000

910000000

920000000

930000000

940000000

950000000

960000000

970000000

980000000

990000000

1000000000

1010000000

0000000

0000000

0000000


TBD00000000000000000

16TG00%00000000000000000%AMJMTGMCKHTWNP0

AM00%00000000000000000%LowHours00000000

JM00%00000000000000000%Buffer00000000

KH00%00000000000000000%Total00000000

CK00%00000000000000000%

40MC00%00000000000000000%HighHours00000000

Running queries in threads

Canceling a running query

Moving a query to the background

Freeing database connections

Analysis Managers (for each format type)

Preperation and import of test data

Validation of export file formats

Execution of each analysis tool

Validation fo analysis tool output

Query Configuration

Saving/Loading queries

Drag/Drop Data Sources

Attribute Selection/Ordering

Specifyng filters/sort order

Adding/Removing/Editing Views

Pedigree Viewer

Adding/Editing adornments

Creating derived kindred

Handling invalid pedigrees

View manipulation (zoom, drag, etc.)

Study Variable Manager

Basic variable types (number, sting, date, etc.)

Derived Code

Derived Number

Affection Status

Liability Class

Import/Export (XML)

Export to SAS/CSV

Export entire data container

Export from result set

Container Management

Add/Edit/Delete Genetic Studies/Data Container (focus on delete)

Active Genotypes/PhenoTypes

Installation

Database Install/Update

Application Install/Update

User Admin

Query Results

Frequency Histogram

2D Scatter

3D Scatter

Heat Map

Tabular View (paging, clustering, export)

Summary View (validation of counts)

Cluster Management

Create Clusters from cluster contents

Create Clusters from query results

Add/Remove items from cluster

Rename/Delete Clusters

Data Editors

In-Cell

Enum

Custom (Genotype, Twins, etc.)

Explorer

Navigators & View

Menus

View Titles

Tear-off views

Miscellaneous

Version Checking

Subject Detail View

Online Help

View Cluster Information

Task Manager

Beckman2

1

Date


Progress

PopGen

Sprint Start Date:5/3/02add original estimate---50% and 90% range

Sprint End Date:5/31/02

Working Days Left:20


Date loggedRFAWhoDescription5/3/025/8/025/10/025/15/025/17/025/22/025/24/025/29/025/31/02


3-May-2002-Frequency Manager23

Allele frequencies

Genotype frequencies

Hardy-Weinberg calculations for distributions

visualizatons

Additional editors12

Pedigree enhancements12DK does actual drawing

notation improvements

printing

editing

exporting

circular pedigrees

Query Tool23

Beef it up

add "and/or" capabilities

time sequence querying

Beef up Study Variable Manager

time course variables24

Performance & Scalability812

Database

Impact on SVM

Impact on Query

Impact on Editors

Polyploid support

Haplotypes23

Ability to predict haplotypes (KEM)

Export data to 3rd party EM program

Haplotype geneology

import haplotype data back from Simwalk


?21%

TG00%

AM00%

JM00%

KH00%

CK00%

92MC00%

80CB00%

PopGen

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

Time

Remaining Effort in Days

Progress

Product Backlog

0

Item #DescriptionEstBy

Very High0Needed for Beckman

Icons

Tweak existing icons

Release Burndown ChartWill the release be done on right time?X-axis: sprintsY-axis: amount of hours remainingThe estimated work remaining can also burn up

Product Burndown ChartIs a big picture view of projects progress (all the releases)

Scalability of ScrumA typical Scrum team is 6-10 peopleJeff Sutherland - up to over 800 people "Scrum of Scrums" or what called "Meta-ScrumFrequency of meetings is based on the degree of coupling between packets

Scalability of Scrum

Pros/ConsAdvantagesCompletely developed and tested features in short iterations Simplicity of the processClearly defined rulesIncreasing productivitySelf-organizingeach team member carries a lot of responsibilityImproved communicationCombination with Extreme ProgrammingDrawbacksUndisciplined hacking (no written documentation)Violation of responsibility Current mainly carried by the inventors

Thank You !!!

Agile Method Unique

Documents

Transcript of Agile Method Unique