Planning
(I am using this page to begin a discussion that I hope will become the development plan (and eventual budget) for the ESIP Exchange. As of now, these are the comments of one person. (Howard Burrows 18:09, 20 January 2006 (EST)) This plan is based on a book by Jim Conallen entitled "Building Web Applications with UML Second Edition". In addition, it adopts elements of the Federal Enterprise Architecture (see Guide to FEA and e-Gov Site).)
We will construct the ESIP exchange using a collection of interrelated "reference models" as employed by the US Government in the Federal Enterprise Architecture:
The most important aspects of our development strategy are shown on the left and right of the diagram. Construction will be driven by the "business" of the Federation as described in our Federation Documents. The result will follow a component-based architecture.
In addition, we will be performance-driven and will design-to-test (DTT).
Developing the ESIP Exchange will involve a number of interations through the following five steps:
Vision Document
The full vision document should list:
- Focus: (for us improved quality, use, and appreciation for Earth science)
- Stakeholders (not just users)
- Primary*: Foundation, Federation, Partners
- Secondary*: Earth scientists, modelers, decision tool providers, decision makers, education
- Scope
- Incremental stages to desired end
- Components
- esipfed.org, GCMD, ECHO, GOS2, ESG, CLASS, NOMAD...
Requirements
- Glossary
- Functional Requirements
- Specify and prioritize elements in Federation Mission
- Nonfunctional Requirements
- Performance, Security, Hardware
- Use Cases
- Key scenarios raised to family of similar cases
- Tests
- Each requirement will be defined in terms of a test that would show success
Analysis and Design
This step depends on the evolving requirements and will involve managers and the implementors: Atlantic BT, NGDC, ESRI, etc. Budget contingencies be part of the design documentation.
Implementation
This will involve staged implementation conducted by recruiting already_existing components:
Deployment
All components are already deployed with varying levels of use. Advertising and marketing the integrated ESIP Exchange will take place for targeted communities based on tests at each stage of integration involving sample audiences.