Systems Development (SD) Presentation

Michael Webb

IT Director for Medicaid

Utah Department of Health

mswebb@utah.gov

UDOH Informatics Brownbag

August 25, 20107/18/03 1

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Systems DevelopmentDefined

• Systems development is the activity of creating new or modifying existing business systems.

• IT System development involves two interrelated life cycles:– System Development Life Cycle – Project Management Life Cycle

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InitiationProcesses

System Development Life Cycle Processes

Project Management Life Cycle Processes

Monitoring &Control

ProcessesPlannningProcesses

ExecutionProcesses

InvestigationProcesses

DeploymentProcesses

DevlopmentProcesses

AnalysisProcesses

DesignProcesses

Operation &MaintenanceProcessess

CloseoutProcesses

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Project Management Defined

• The application of knowledge, skills, tools, and techniques to project activities in order to meet customer needs and expectations (usually related to budgets, schedules and quality ‘deliverables’)

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Project Management Discipline

• Many sources of training – one certification source: i.e. Project Management Institute (PMI)

• The amount of project management rigor applied is a function of level-of-effort/complexity.

• No current state standard PM discipline – Agency culture ‘rules’.

• The “Project Planning and Management for IT” course presented by BYU is recommended.

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Project Management Life Cycle (PMLC)

• The classic PMLC is comprised of the following process groups:– Project Initiation (PI).– Project Planning (PP).– Project Execution (PE).– Project Controlling (PC).– Project Shutdown (PS).

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PMLC – Project Initiation

• PI processes include project approval, project organization, and project ‘kickoff’.

• The primary PI process deliverable is the ‘Project Charter’:– Issued by senior management.

– Contains project scope and objective statement.

– High level schedule/target dates.

– Empowers the designated project manager to apply organizational resources.

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PMLC – Project Planning

• Project Planning processes include:– Activity definition (all work streams) , sequencing,

and estimating.

– Detailed schedule development.

– Resource planning.

– Cost estimating and budgeting.

– Risk evaluation.

– Communications planning.

– Quality planning.

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Project Planning (cont)

• PP process deliverables include:– Updated Project Charter– Project plan/schedule.– Risk Management Plan.– Communications Plan.– Quality Plan.

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PMLC – Project Execution

• PE processes include performing the planned activities, managing project team, solving problems, and distributing progress information to stakeholders.

• PE process deliverables include:– Updated project plan.

– Scheduled ‘Deliverables’.

– Team meeting minutes.

– Progress reports.

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PMLC- Project Controlling

• PC processes involve managing the project scope, schedule, cost, quality, and risk.

• PC process deliverables include:– Change Management Plan.– Issue log.

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PMLC – Project Shutdown

• PS processes include final system acceptance, overall project evaluation, and transition to operational support.

• PS deliverables include:– System ‘sign off’ document.– Lessons learned document.– System Support Plan.

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System Development Life Cycle (SDLC)

• The classic SDLC is comprised of the following process groups:– Systems Investigation (SI).– Systems Analysis (SA).– Systems Design (SD).– Systems Development (SDev).– Systems Deployment (SDploy).– Systems Operation & Maintenance (SO&M).

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SDLC (cont)

• The planning for System Development needs to include all life cycle process groups.

• Following the System Analysis processes, the system sponsors will decide whether to use internal resources (make) or external resources (buy) to develop the system.

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SDLC – Systems Investigation

• SI processes involve understanding the need and benefits of the new/enhanced system.

• SI process deliverables include:– Concept Definition > Specifies the business

processes to be addressed, interfaces with other systems, etc.

– Feasibility Study > Preliminary evaluation of required resources, timing, ROI, organizational impact, etc.

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SDLC – Systems Analysis

• SA processes involve understanding the functional requirements of the proposed system.

• SA process deliverables include:– Business process model.– Initial Data model.– Object model.– Proposed system Architecture.– Requirements document.

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SA (cont)

NOTE: If a “BUY’ decision has been made, system sponsors will initiate the vendor procurement process at this point.

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SDLC – Systems Design

• SD processes involve translating functional requirements into specific system features and functions, i.e. what the system will do and how the system will be implemented.

• SD process deliverables include:– Final data model.– Final system architecture.– Design documents.– ‘Proof of Concept’ prototypes.

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SDLC – Systems Development

• SDev processes involve implementing the designs by creating, integrating, and ‘debugging’ the system components.

• SDev process deliverables include:– Software code.– System test plans.– System documentation (e.g. user guide,

installation/operation guides).

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SDLC – Systems Deployment

• SDploy processes include user acceptance, user training, system installation, and operational testing.

• SDploy process deliverables include:– Acceptance test plan.– User training document.– Installation plan.– ‘Beta’ test plan.

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SDLC – System Operations & Maintenance

• SO&M processes include those oriented to user support:– Insure system operations according to required

‘up-time’ requirements.– Backup system data.– Address system problems.– Process system enhancement requests.

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SO&M (cont)

• SO&M process deliverables include:– Support Coverage Plan.– Change Management Plan.– Regression Test Plan.

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SDLC Models

• There are several types of SDLC models:– ‘Waterfall’

– ‘Prototyping”

– ‘Rapid Application Development’

• While each SDLC model address all of the process groups – the sequence of processes differ between models.

• System sponsors, project managers, and technical architects collaborate to determine which model is consistent with the proposed system.