Difference Between Job Specification and Job Description

Job description vs. job specification: what’s the difference?

The core distinction is fairly simple: a job description focuses on what the job actually involves, the tasks and responsibilities, while a job specification focuses on who’s qualified to do it, the skills, traits, and education required. A few other ways they differ:

Basis	Job Description	Job Specification
Meaning	A formal document outlining a role’s tasks, duties, and responsibilities	An official document outlining the skills, traits, experience, and education needed to perform those tasks
Contents	Duties, responsibilities, objectives, scope of work, working conditions	Skills, qualities, qualifications, education, experience, certifications, training
Origin	Created after a job analysis	Created after the job description
Purpose	Sets clear expectations for the role	Helps candidates assess whether they’re actually qualified
Application	Helps spot skill gaps or overlapping duties within an organization	Helps evaluate candidates during recruitment against set benchmarks

What is a job description?

A job description is a formal written document laying out a role’s duties, responsibilities, tasks, and qualifications. It’s typically used during recruitment to give candidates a clear picture of what the role actually demands. A well-written one spells out performance standards, the skills needed, and the tasks involved clearly enough that someone can step into the role and actually do it well.

Writing one starts with a job analysis, identifying the knowledge, skills, and experience the role genuinely requires. Organizations also need to factor in their broader business goals and figure out which competencies actually matter for the position, which ultimately helps them find the right person for the job.

What is a job specification?

A job specification outlines the qualities, skills, traits, education, and experience needed to qualify for a role, essentially listing the capabilities required to meet what’s laid out in the job description. Where a job description focuses on tasks, a job specification focuses on the person who’ll be doing them. It typically follows right after the job description, once the tasks themselves have been spelled out.

Closing thoughts

Job specifications help organizations identify the right talent against a clear set of criteria, though they’re rarely enough on their own to determine if someone’s truly qualified. They work best alongside job descriptions, together, the two give a fuller picture of whether a candidate fits the role. Even though they serve different purposes and convey different information, both belong in any job posting. Including them clearly tends to filter out unqualified applicants early, which saves an organization real time and effort down the line.