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Population Interaction Unit

Problem

The system needs to show a set of homogeneus objects to the user.

Principle

Data presentation, data manipulation.

Forces

Solution

Select the class, the type the object belongs to.

Decide about the following considerations:

Rationale

In a consistent way respect to Instance IU Population IU is an extension to work with collections of homogeneus data. Therefore, Display Set, Actions, & Navigation are shared as helper pattens by both Instance & Population IUs.

The addition of the collection aspect introduces new problems to deal with, more concretely: sorting and filtering.

Examples

Almost every example of grid's in business applications are samples of this pattern.

Specification

A Population IU pattern can be defined describing five aspects.

Representation

An Population Interaction Unit is represented by a wire frame box showing its name with a small grid in the upper-right corner.






Root CUIP Metalevel

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