## Company

id | name | location
--- | --- | ---
1 | TechCorp | New York
2 | SoftwareInc | San Francisco

## ITJobPosting

id | jobTitle | companyId
--- | --- | ---
|  | (→ Company.id)
1 | IT Support Technician | 1
2 | Network Administrator | 2

## ITSkillsRequired

id | skillName
--- | ---
1 | Programming
2 | Database Management

## JobRequirement

id | itJobPostingId | requiredSkillId
--- | --- | ---
| (→ ITJobPosting.id) | (→ ITSkillsRequired.id)
1 | 1 | 1
2 | 1 | 2

## OperatingSystems

id | osName
--- | ---
1 | Windows
2 | Linux

## ITJobOSRequirements

id | itJobPostingId | operatingSystemId
--- | --- | ---
| (→ ITJobPosting.id) | (→ OperatingSystems.id)
1 | 1 | 1
2 | 1 | 2
3 | 2 | 1