Data acquisition Microarray experiment Microarray experiments including conditions, protocol, sample:data relationships etc. MicroRNA array RNA microarrays Methylation array RNA chips Reverse phase protein array Tissue microarray Two channel microarray One channel microarray SNP array 1.8 Tiling arrays Proprietary platform micoarray Genotyping array Gene expression microarray Microarrays aCGH microarray Microarray_experiment Multichannel microarray miRNA array This might specify which raw data file relates to which sample and information on hybridisations, e.g. which are technical and which are biological replicates. mRNA microarray