creating ISA-Tab

2.4. ISAcreator for SEURAT-1

Understanding ISA-TAB Studies
Understanding ISA-TAB Studies

The Study nodes are denoting the study subjects (biological samples) and the Assay Nodes describe the experiment itself. The samples processing might be more complex than a single step. There could be multiple protocols involved. These could describe biological sample handling, but also data processing.

2.5. ISAcreator ISA-TAB

Understanding ISA-TAB Assays
Understanding ISA-TAB Assays

A study may contain one or more assays. An assay is defined by the endpoint measured (i.e. gene expression) and the technology employed (i.e. DNA microarray). This is described in the Investigation file. The ISA-TAB assay file contains metadata only. The data itself is in external files, which are referred from the Assay file.

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