Concept:
Flat company
Headline
A data model for flat companies
Description
Flat companies are sufficiently described by the base feature Feature:Company.
Motivation
The data model for flat companies is supposed to provide a simple (in fact, trivial) starting point for contributions. Despite its simplicity, the data model readily exercises some data modeling facets: basic types such as strings and floats, compound types based on tuples or records, mandatory as opposed to optional properties, and list-based containers.
Illustration
The feature is illustrated with a data model in Language:Haskell; type synonyms instead of algebraic data types are used to emphasize the fact that no recursive are defined here:
type Company = (Name, [Employee])
type Employee = (Name, Address, Salary)
type Name = String
type Address = String
type Salary = Float
A sample company takes the following form:
( "Acme Corporation",
[
("Craig", "Redmond", 123456),
("Erik", "Utrecht", 12345),
("Ralf", "Koblenz", 12342),
("Ray", "Redmond", 234567),
("Klaus", "Boston", 23456),
("Karl", "Riga", 2345),
("Joe", "Wifi City", 2344)
]
)
Company data is a pair consisting of the company name and a list of employees. Each employee has a name, an address, and a salary.
These snippet originate from Contribution:haskellList.
Relationships
- See Feature:Hierarchical_company for hierarchical, i.e., non-flat companies.
- The features Feature:Flat company and Feature:Hierarchical_company are mutually exclusive and either of them must be selected for any realization of the @system.
- Several features cannot be usefully combined with Feature:Flat company. For instance, Feature:Depth for the computation of the nesting depth of departments makes no sense without (nested) departments.
Guidelines
- The terms "company", "employee", "manager", "name", "address", and "salary" should appear as part of the abstractions that realize the corresponding ingredients of the data model.
- A sample company should be described and processed in some ways, depending on what other features are implemented.
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