Category Archives: Technology

Posts related to technology in general

When you add an existing Google or Box file, we copy it into your Kerika folders

Technology, Usability,

If you use the “file picker” that’s built into Kerika to add an existing Google Drive or Box file to a card, canvas or board — for a Task Board, Scrum Board or Whiteboard — you will see a message that says the file is being copied.

This is the file picker:

File picker
File picker

Clicking on the File Picker button brings up the File Picker dialog:

Using the Box file picker
Using the Box file picker

And this is the “copying…” message that’s shown.

Copying message
Copying message

So, what’s happening?

Well, Kerika stores all your Kerika-related files in a set of special folders within your Google Drive or Box account, if you are using Kerika+Google or Kerika+Box, and these are organized neatly into folders corresponding to each of your boards.

Here’s what the folders in your Box account look like (you can learn more by reading about how Kerika integrates with Box):

It’s a similar structure if you are using Kerika with Google:

Keeping all the Kerika files together in a set of related folders makes things cleaner for you: when you look at your Google Drive or Box Account, you know exactly what’s being used by Kerika, and what’s other stuff.

And this is why we make a copy of your existing Google Drive or Box file when you use the File Picker: it enables us to put a copy into your Kerika-specific folders, where it is easier to share with the rest of your project team.

Leaving chat, and then returning

Agile & Scrum, Kanban & Lean, Technology, Usability, , , ,

When you are writing a chat message, on a card or canvas on any Kerika Task Board, Scrum Board or Whiteboard, what happens if you need to leave that message in the middle and go look at something else in Kerika?

For example, suppose you are in the middle of writing a chat message, but in order to complete it, you need to go off and look at another card’s details, or maybe a file attached somewhere else on the board?

You can leave aside a chat in mid-stream, go somewhere else in Kerika, return to the chat, and pick up where you left off!

That’s because Kerika uses your browser’s local cache storage to keep your unsent message: it means your changes aren’t lost while you go look at something else in Kerika.

This is a handy usability fix we have always had in Kerika, but it may be one that folks didn’t realize existed…

Well, now you know :-)

Amazon burped a little on the weekend

Kerika, Technology,

We use a number of Amazon Web Services, including one called Simple Queue Service which Kerika uses to handle communications between our main project database server and a separate server that handles the Search function.

  • As with all search engines, Kerika’s Solr engine does a full indexing of the database only once: when the database is rebuilt for any reason (which happens very rarely), and after that it does incremental indexing which means that it only looks at changes made to individual boards, cards, and canvases.
  • Using a queue helps us manage the load of traffic going to the search engine server: in the unlikely event that a lot of people make a lot of updates to their Kerika boards at the same time, Solr won’t get overwhelmed with a sudden burst of new indexing.
  • There are lots of ways to implement queues in software — in fact, studying queuing theory is a standard course in all computer science programs — and at this point most apps, like Kerika, prefer not re-invent that particular wheel: instead, it is more cost-effective to use some standard queuing facility that’s available as part of the underlying platform.

AWS works very well in our opinion — it has very high reliability across most of its services — but like all software, it isn’t entirely infallible.

Over the weekend we observed a small handful of errors in our services logs where it looked like SQS had a temporary problem.

We cross-checked this time period with other activity on Kerika, and determined that about 7 Kerika boards may have been affected: not in terms of any data loss or corruption on the board itself, but in terms of some changes not being updated in the search index.

Now, 7 boards is a tiny portion of the entire Kerika project database, which numbers in the hundreds of thousands of boards, but we are glad to have spotted the potential for trouble and have re-indexed the data on these particular boards.

If we did our job well, no one will notice.

Vimeo makes for better embedding (than YouTube)

Kerika, Technology

We post our tutorial videos on both YouTube and Vimeo, and get far more traffic on YouTube than we do on Vimeo.

But, as we go through a review/refresh of our website, we are switching over to Vimeo for embedding these tutorials, because Vimeo provides a cleaner look that seems to be less intrusive within our own design.

Here’s the same video, embedded from YouTube (on top) and Vimeo (on bottom):

The YouTube video has a weird grey shadow on the top part of the thumbnail, like it was deliberately trying to provide a retro, cathode-ray-tube (CRT) look.

(We are not fans of CRTs; don’t own vinyl any more…)

The same video on Vimeo has a cleaner framing:

 

Google doesn’t seem to like client-side compilation of less.css

Technology

Less is a CSS pre-processor: it extends  CSS by adding variables, mixins, functions and many other techniques that allow easier maintenance of your browser stylesheets.

You can compile Less either on the client side, or on the server.  We thought it didn’t matter; but it turns out that Google search engine crawler doesn’t like the client-side compilation:

less.css compilation
less.css compilation

 

If you are using Less on your website, you might want to also avoid client-side compilation so that Google doesn’t barf on it…

Attaching content to the board itself, not just to cards

Agile & Scrum, Kanban & Lean, Technology, Usability, , , , , , , ,

We have added a new feature that should prove handy for a lot of folks: you can now add content — files from your laptop, images from your mobile or tablet, Web links from your Intranet or the Internet, or canvases — to a Task Board or Scrum Board itself.

If this sounds like something that was always there, maybe we need to say that differently: you used to have the ability to add content to a card, now you can add it to the board itself.

There are many situations we have encountered where we want to share content or a canvas with a team, but there wasn’t any obvious place to still it — no single card on the board that seemed like the right place to attach that content.

And that’s because the content we wanted to add was applicable across the entire board, not just relevant to a single card.

This was getting frustrating, so we decided to scratch our itch: a new button on the top-right area of your Kerika app will let you add files, Web links and canvases to the board itself:

Board Attachments
Board Attachments

This should make some of you as happy as it has made us!

Adding a Google Map to your Kerika canvas

Agile & Scrum, Kanban & Lean, Technology, , , , ,

Did you know that you can embed a Google Map in your Kerika Whiteboards? It’s easy: just copy the Google Map’s URL:

Adding a Google Map to Canvas
Adding a Google Map to Canvas

And paste it into the dialog box that appears when you click on the “Add Web Content” button on your canvas toolbar:

Add Web Content
Add Web Content

Kerika automatically figures out the URL refers to a Google Map, and shows you an embedded map on your canvas:

Example of embedded Google Map
Example of embedded Google Map

You can do the same thing with card attachments, for your Task Boards and Scrum Boards: Kerika shows a small thumbnail of the map in the list of attachments on your card:

Example of attached Google Map
Example of attached Google Map

 

UI tweak: removing the “Add member” button from card details

Agile & Scrum, Kanban & Lean, Team Collaboration, Technology, Usability, , , ,

As part of our work on combining tags and colors, we have been cleaning up parts of the Kerika user interface that had minor inconsistencies.

One such inconsistency — in our view — was that you were able to add people to a project team from within the card details dialog itself:

Adding people to a team
Adding people to a team

This button has been there in Kerika for a very long time, but it doesn’t really make sense to have this capability within the card details dialog: it just isn’t the best place to decide to add someone to a project team.

Instead, in our new layout the Project Settings dialog consolidates all the board management in one place, including adding people to a team, changing someone’s role within a team, and removing someone from a team:

 

UI tweak: showing attachments in chronological order

Agile & Scrum, Kanban & Lean, Technology, Usability, , , ,

It used to be that when you added content to a card — files from your laptop or Web content from your Intranet or the Internet, or a canvas — the newest content was added at the top of the list.

Of course, you could always rearrange them, by grabbing and dragging them up or down the list, but this it not a feature that many users discovered on their own :-(

Rearranging attachments on a card
Rearranging attachments on a card

Well, for greater consistency with how the chat and history are shown within a card’s details, we are now going to show attachments in chronological order as well — the latest files and URLs that you added to a card will appear at the bottom of the list, and the view of these will be automatically scrolled to show the latest items: