Manage Statistical Studies

In order for a statistical study to be useful to the broadest possible audience, it must provide documentation that allows researchers to understand and discover the study's data.

A wide range of information is required to describe a statistical study. Colectica makes it simple to manage and disseminate this information. Importantly, all this information is represented using open data standards like DDI 3, so you don't have to worry about vendor lock-in or lost information.

The following tables describe the types of information that Colectica is capable of managing.

Projects

	Item Type	Description
	Project	A group of related studies and resources
	Study	A data-centric study
	Resource Package	A collection of reusable metadata definitions

General and Conceptual Information

	Item Type	Description
	Concept	Describe the basic ideas being explored by a study
	Concept Set	A set of related concepts
	Universe	Describes the population being studied
	Universe Set	A set of related universes
	Organization	An institution, company, or other organization
	Organization Set	A set of related organizations

Classifications

	Item Type	Description
	Category	Generic term for items at any level within a classification
	Category Set	A set of related categories
	Code	Associates a numeric or alphanumeric value with a category
	Code Set	A set of related codes

Data Collection

	Item Type	Description
	Question	A question that is asked to a survey respondent
	Question Set	A set of related questions
	Sequence	A reusable sequence of questions and control constructs
	Instrument	A questionnaire

Data

	Item Type	Description
	Variable	A reusable, logical description of a column of data
	Variable Set	A set of related variables
	Data Relationship	Describes the layout of a data file
	Dataset	A file containing data