CSE Senior Design II Staged Delivery Instructor: Manfred Huber Partially adapted from Mike O’Dell

1 CSE What is Staged Delivery? Requirements Analysis Concept & Planning Architectural Design Medium High Priority: Detailed design, implement and test Medium Priority: Detailed design, implement and test High Priority: Detailed design, implement and test Medium Low Priority: Detailed design, implement and test Low Priority: Detailed design, implement and test Run out of time and money Public Release Design-to-Schedule with risk reduction.

1 CSE What is Staged Delivery?  A Lifecycle Model in which the: delivered in discrete stages  product is delivered in discrete stages prioritized  requirements are clearly prioritized  schedule determines  schedule determines the features that are delivered at each stage  the deliverable at any stage is “completed” potentially “shippable”

1 CSE Why Consider Staged Delivery?  Staged Delivery can, potentially: reduce risk  significantly reduce risk associated with an “all or nothing” release signs of progress  provide clear signs of progress toward the ultimate product definition  improve product quality build-to-budget  facilitate a build-to-budget project team morale  help maintain team morale during the end game

1 CSE Requirements for Staged Delivery product requirements  Clear and agreed statement of product requirements prioritization  Buy-in at all levels on prioritization of features/requirements stakeholders and end-users  Willingness of stakeholders and end-users to accept less than “the whole enchilada”

1 CSE Requirements for Staged Delivery partition the deliverables  Ability to partition the deliverables into phased releases focus on quality  Commitment to focus on quality of each staged release architectural model  A clear and well-defined architectural model, precisely mapped to your requirements.

1 CSE Advantages of Staged Delivery  Provides visible signs of progress for customers and stakeholders mitigates  obviates, mitigates rule predictable releases  Allows frequent and predictable releases  internal or external Beta  internal or external Beta releases/program? frequent customer/end- user feedback  encourages early and frequent customer/end- user feedback marketing and sales team  engages marketing and sales team in process

1 CSE Advantages of Staged Delivery early warning  Provides early warning of problems in development  Ability/Inability to deliver even minimal core will be clear well before deadline  Cuts down on project management overhead  less reporting, more delivering! release options  Increases release options  e.g., release version 1, hold version 2, release version 3, …

1 CSE Advantages of Staged Delivery estimation error  Reduces estimation error  smaller tasks to estimate -> less variance integration and test  Reduces integration and test effort But…

1 CSE Major Risk with Staged Delivery Feature Creep, late in the game!

1 CSE Keys to Success with Staged Delivery architecture is flexible  Be sure that the product architecture is flexible, supporting as many future directions as possible importance/priority  Plan stages in order of importance/priority first stage as early as possible  Define the first stage so that it can be delivered as early as possible themes  Define the stages in terms of “themes” stakeholder buy-in  Get stakeholder buy-in on staging plan