Incremental Model

Incremental Model

• Incremental development is based on the idea of developing an initial implementation, exposing this to user comment and evolving it through several versions until an adequate system has been developed.
• It is an agile process.

  graph LR
  od[Outline Description]

  subgraph ca[Concurrent Activities]
    direction TB

    s[Sepcification]
    d[Development]
    v[Validation]

    s<-->d<-->v
  end

  subgraph Version
    direction TB

    iv[Initial Version]
    ivs[Intermediate Versions]
    fv[Final Version]
  end

  od-->ca

  s<-->iv
  d<-->ivs
  v-->fv

Benefits of Incremental Process

1. Reduce the cost of accommodating changing customer requirements.
2. It is easier to get customer feedback.
3. More rapid delivery and deployment of useful software.

Problems

• From a management perspective
  1. The process is not visible.
  2. System structure tends to degrade as new increments are added.