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« Memento wiki home page as of 2021-12-13, editions Mobile 4.10.3, Desktop 1.10.1 »

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Wiki home — The Memento Database application

The Memento Database application is a personal & professional database application that comes in 2 editions, each of which run on various computing platforms. Memento Database runs within the Java Runtime Environment.

Memento editions
The Mobile edition — an edition that runs on mobile device platforms, such as Google's Android OS and Apple's iOS OS.
The edition on the Android platform dates back to 2015 or earlier.
The edition on the iOS platform has not yet been released (as of December 2021 and is currently undergoing beta testing.
The Desktop edition — an edition first released in 2017 that runs on desktop, laptop, and other computer platforms, such as Microsoft's Windows PCs, Apples MacOS PCs, and Linux PCs.

About Memento — Information about the Memento Database application

For information about Memento, see the About Memento home page.

About the Memento wiki — Information about the user-authored Memento wiki

For information about the user-authored Memento wiki, see Where is the wiki home page?.

Memento's structure — the Presentation, Application, and Data tiers

Like almost all modern applications, Memento employs a 3-tier structure.

Memento tiers

  • The Presentation tier — its UI (user interface) on each edition & platform. This tier manages the screens & windows & their menus, buttons, and so on &mdash all interaction with the user.
  • The Application tier — its actions taken upon user input or other events, like the saving of an entry. This tier manages these events, some of which are handled by Memento itself and some of which may be controlled by the user using scripting, generally in JavaScript.
  • The Data tier — its storage of and access to data. This tier includes definitions of all libraries, fields (aggregations, autofills), entries, links among or relationships between libraries, templates, filters, synchronization of local data with data in the cloud, the partial synchronization of individual libraries with loss of library links, item names & tag names in SCL, Radio Buttons, MCL, Checkboxes, List, and Tags fields.

The Memento UI (user interface) — The Presentation tier indices (indexes)

Like all indices, these provide direct access to the various facilities of Memento. The UI indices (one for each edition) are specific to the OS platforms it runs on.

Mobile index — Navigating the Mobile Memento UI (user interface)

The index to the Mobile edition of the Memento Database provides links to all the Wiki21 (Memento wiki 2021) pages for the Mobile edition.

Desktop index — Navigating the Desktop Memento UI (user interface)

The index to the Desktop edition of the Memento Database provides links to all the Wiki21 (Memento wiki 2021) pages for the Desktop edition.

Scripting index — Navigating the Memento Scripting or Application tier facilities — Scripting the Memento Database Application

The (almost entirely) edition-independent index to the Memento Database application provides links to all the Wiki21 (Memento wiki 2021) pages for scripting the Memento Database application.

Database index — Navigating the Memento Database or Data tier facilities — Database & Data Structure in the Memento Database application

The index to the (almost entirely) edition-independent index to the Memento Database application provides links to all the Wiki21 (Memento wiki 2021) pages for the Database & data structure areas within the Memento Database application.

Support — Everything involved in supporting your use of Memento, Help, & the Forum and the Wiki


Wiki support

Yada, link(s) to wiki support page(s)

Memento support

Yada, link to memento support

Older stuff should by now be in linked pages, but is it?

NOTE: The following was from earlier versions of wiki21 and has been related into its own page — the Home pages of each of the editions & platforms.

Here's more about the obsoleted information below.

Designing a database & setting up the libraries

yadda yadda

Overviews Specifications Help

What is a Library?
Library Structure
Relationships in a Library

Creating a new library

Making your data work for you

yadda yadda

Overview Specifications Guidance
Using the Entries List screen to visualize & analyze your data

Teamwork features

yadda yadda

Overview Specifications Guidance
Users & user groups Permissions

Shared Libraries

Data Analysis in the Desktop edition (aka Slicing & dicing)
Sorting, grouping, filtering, charting, aggregation

« NOTE: As of Nov 2021, this section is merely a paste of the same section for the mobile edition. I don't have much experience with data analysis in the Desktop edition, so maybe someone (Beth, maybe with Ernst's help?) might fix it up to be accurate for the Desktop edition? -Bill »

Memento provides the ability to view entries in the Entries List as a straightforward list of entries. In addition, it provides an assortment of list features the user can use:

  • to sort or view the entries in various orders (sequences),
  • to filter the data to see only the entries you want to see, view entries in groups with subtotals,
  • to chart or view the entries' field values plotted on a chart to give the user a visual image of how the data values relate to each other,
  • and to aggregate or view totals & subtotals, averages, minimums, or maximums.
Topics Overviews Specs Guidance
Data visualization & analysis (Slicing & Dicing)
Sort/rearrange, group, filter, chart, aggregate
Aggregating data

Charting data

Entries List screen Slicing & dicing (visualizing & analyzing) library data

End of the new mobile UI section based on Beth's desktop up section

Overviews Specifications
The Android platform and soon iOS, too
How:Data analysis (Slicing & Dicing):
(Sorting, grouping, filtering, aggregation, & charting)

Charting data
How:Slice & Dice Library Data
Screens & cards

Libraries List screen

Library Edit screen
Entries List screen
Entry Edit card
Entry View card
File Manager card
Attached Files card
Charting data

Data Analysis in the Mobile edition — Slicing & dicing:
Sorting, grouping, filtering, charting, aggregation

Topics Overviews Specs Guidance
Data analysis (Slicing & Dicing) Aggregation

Charting data

Entries List screen Slice & Dice Library Data