A custom type describes a specialized sub-entity that extend the minimal LOGS entity model by additional customized fields that are ordered in sections. This customizations can only be done by administrators.

Example:

Imagine a group that does NMR & EPR experiments, both methods use the LOGS core entity-type “Samples”. To emphasize the different type of samples used in the experiments for better discrimination, easier filtering and accurate meta-data tracking, an admin creates the following custom types:

• NMR Sample,

• EPR Sample.

The customized types extend the standard meta-data fieldsof the minimal model, which are the required fields Name and Project by the following custom fields & sections (for reference see Custom fields):

NMR Sample

Section: “Sample details”:

Custom fields:

• NMR Solvent → Data-type: text, Fixed option: one of [“CDCl3”, “D2O”, “MeOD”, “H2O/D2O”, “DMSO”]

• Weight [mg] → Data-type: number, Required

• Is polymer → Data-type: boolean, default: false

Section: “Experiment details”:

Custom fields:

• Temperature [°C] → Data-type: number, default: 24,

• Experiment 1→ Data-type: text, Required

• Experiment 2→ Data-type: text

• Experiment 3→ Data-type: text

EPR Sample

Section: “Sample details”:

Custom fields:

• EPR Solvent → Data-type: text, Fixed option: one of [“Pentane”, “Cyclopentane”, “Hexane”, “Cyclohexane”, “Benzene”, “Toluene”, “1,4- Dioxane”, “Chloroform”, “Diethyl Ether”]

• Volume [μl] → Data-type: number, floating-precision

• Is solid powder → Data-type: boolean, default: false

Section: “Experiment details”:

Custom fields:

• Experiment 1→ Data-type: text, Required

• Experiment 2→ Data-type: text

• Experiment 3→ Data-type: text

Change Type of Entries

You can change the type of an existing item (sample, dataset, etc.) in the edit mode of each item, or bulk edit multiple items in advance edit mode.