Our Client

Animal Shelter needs an information system to help keep track of their business.

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Our Solution

We propose a database that would store all the required information about: clients, employees, activities,animals and their medical recordin a consistent and organized manner.

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Their Information Requirements

Animal Shelter wants to have: a list of animals, a list of cages, a list of clients, a list of employees.

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Their Information Requirements

Our database must be able to answer to the following questions:

Which cages hosted animals while they had a contagious disease?

What is the evolution of adoptions and receptions depending on weather, season or special holidays?

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Their Information Requirements

Our database must be able to answer to the following questions:

Which was the most active employee and which is responsible for a particular reception?

What is the most adopted type of animal?

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Assumptions

• The veterinary is liable for an animal’s vaccines, diseases list, treatments.

• The veterinary is an employee. • If an animal’s birth year is unknown, the veterinary approximates it.

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Assumptions

• Each building code cannot be changed and each cage has a standard size.

• Each employee has a job history and an associated salary, but Animal Shelter does not want to keep track of shifts.

• An animal born in the Animal Shelter is taken through a reception procedure.

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Constraints

• Each start date is not greater than its corresponding end date.

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Structural Business Rules

• Each adopter can return an animal and take home another.

• Each adopter cannot take home the same animal more than once.

• Some animals have no names, so each animal is assigned an artificial id.

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Procedural Business Rules

• Each animal must undergo a medical examination when it arrives at the shelter.

• Animal Shelter does not need to know the origin of abandoned animals.

• They do not want to keep track of any dead animal.

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Procedural Business Rules

• Animal Shelter maintains contact with visitors by using the newsletter.

• There are no adoption taxes.

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ERD

ANIMAL# animal ido name* birth year* sex

CAT* hair length

DOG* breed* size

OTHERo description

CAGE HISTORY# start dateo end date

CAGE# building id# cage code* size

SHOT LIST# date

VACCINE# name

DISEASE# name* contagiouso description

DISEASELIST# start dateo end date

TREATMENT# treatment id* start dateo end date* quantity

MEDICATION# nameo description

EMPLOYEE# employee id* first name* last nameo addresso phone number

EMPLOYEE HISTORY# start dateo end date* salary* job

RECEPTION LIST

DAY # date* weather* temperatureo holiday

ADOPTIONLISTo end date

CLIENT# client id* first name* last name

VISITOR* e-mail

ADOPTER* address* animals number* children number

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