Authors of accepted papers will receive reviewer comments by email. Please take them into account carefully when preparing your camera-ready paper for the proceedings.

The final paper and the signed copyright form are due by the camera-ready deadline:

Furthermore, please note that we expect to receive at least one non-student full conference registration for each paper (details will be communicated later).

The Middleware 2022 Proceedings will be published under the ACM (Association for Computing Machinery) copyright, under their usual copyright and permissions policy.

ACM Copyright Form to be Completed

Authors of accepted papers need to log-in to the HotCrp site corresponding to the track that they submitted their paper to. On the submission page for their paper, there will be a link to the ACM e-Rights form that will need to be filled and submitted (this is the same page as for the camera-ready submission).

Note: Usually, only one ACM copyright form is needed, and it can be signed by the lead or contact author. A second form may be requested from co-presenters depending on any US or foreign government affiliations. The ACM Copyrights-Permission office will notify you if a second form is needed.

Requirements for Preparing Your Final Paper Version

ACM provides a template for Microsoft Word and a template for LaTeX. However, ACM is currently in the process of revamping its Word template, and therefore, an interim template is used in the meanwhile. We highly recommend that the LaTeX template be used.

Microsoft Word Instructions

Please download the ACM “Interim Template” Word document (Interim layout.docx) from ACM here. There is also a sample PDF file produced with the Word template. We strongly encourage you to review the sample file above so you will be aware of the mandatory sections, copyright strip information (see next step), formatting requirements, font requirements, font sizes, and spacing required for the final version.

The correct ACM Middleware 2022 copyright-permission notice (generated through HotCrp) needs to be inserted in the sample files above (page 1, bottom of column 1) before you submit your final version. A custom DOI URL (also generated through HotCrp) will also need to be included.

This statement must be in 7 point Libertine font, with the first paragraph text justified, with the venue acronym/track (e.g., Middleware ‘22) in italics. Refer to the “Interim-layout.docx” sample file to view how the ACM copyright statement should appear -- you should preserve the original formatting.

LaTeX Instructions

Template: Please use the sigconf proceedings template from the ACM Master article template for LaTeX (acmart class) for your submission (under the LaTeX Authors section). Please follow the instructions given on the page, and please have a look / start from the sample file “sample-sigconf.tex” in the acmart package. Even if you have already downloaded the package for another conference, you should download it again as ACM often makes changes to their template and publishes new versions. If you submit a paper using an outdated version of the template, you might be required to update to a newer version.

Fonts: Type 1 or TrueType fonts must be used (this will usually happen by default). Type 3 fonts are not permitted. TrueType fonts are permitted, but will be tested for any problems which may need to be rectified. For help on obtaining the correct type of fonts, see this hint in the ACM FAQ list. Note: in rare cases, PDFs generated with pdflatex will not contain embedded fonts. This most often occurs when vector images included in paper do not themselves embed their fonts. If we find problems with your PDF, and you are unable to submit a revised version with correctly embedded fonts, we may have to take a less desirable and less safe route: that you submit a PostScript (PS) version, from which we produce PDF.

Camera-ready copyright header: the ACM copyright form will provide a block of LaTeX code to be included in the “Rights management information” section of the header. Please double-check that your produced document matches the copyright info details found in HotCrp, and that you have included your full DOI URL.

Other Information:

Please continue reading for additional information on preparing your final paper.

Font size and page limit

Font sizes of 10 pt and 9 pt are acceptable (unlike original submissions which required a font size of 10 pt only)

The following page limits applies:

  • Research Papers: 12 pages of technical content, including text, figures, and appendices, but excluding any number of additional pages for bibliographic references.
  • Workshop papers (WoSC, DICG, WoC, MIDDLEWEDGE): 6 pages of technical content, including text, figures, appendices and references (no extra pages allowed).
  • Demos and Posters: 2 pages of technical content, including text, figures, appendices, and references.
  • Page size

    The page size for this ACM publication is US Letter Portrait (8.5×11 inches). Submissions that do not conform to the ACM standards, templates, and formats will be returned to the author for corrections and/or alterations.


    Must be in Initial Caps Meaning First Letter of the Main Words Should be Made Capital Letters. Ex: note the Capital Letter “M” in Must, Meaning, and Main, the Capital Letter “C” in Caps and Capital and the Capital Letter “L” in Letter and Letters.

    Authors’ complete names, email, affiliation and affiliation location

    Prior to submitting, be sure to update the final version of your PDF to include all authors full names, and correct affiliation names, location, and other information under the title of the paper. See the first page of the ACM sample pdf.


    Authors must include a brief summary (abstract) of their work in the first section of their submission after the title, authors, and affiliation information on the first page. See the first page of the ACM sample pdf.


    Authors must include all works cited in their submission in a References section at the end of the paper or extended abstract. See page 4 of ACM sample pdf. Also refer to the ACM citation style and reference formats.

    ACM Classification Sections

    The Categories and Subject Descriptors and Keywords are mandatory by ACM on the first page of your submission after the Abstract. See the first page of the ACM sample pdf for information about how these two sections should appear in your submission.

    Read this section carefully. Your selections for the three sections are mandatory on the submission page when submitting your final version.

    Categories and Subject Descriptors (Mandatory for the first page of your paper): Make sure that your selection included on the first page of your paper is also chosen accordingly on the submission page. Click here for information on the ACM Computing Classification Scheme. The new templates enable you to import required indexing concepts for your article from the ACM Computing Classification System (CCS) using an indexing support tool found in the ACM Digital Library (DL) which generates the necessary LaTeX code once you have selected your terms.

    Keywords: This section is your (author) choice of terms that you would like used to index your work.

    Bad Breaks

    Be sure you do not have bad page breaks or bad column breaks. One example of a bad column break is a widow, which occurs when the last line of a paragraph that begins at the bottom of one column appears by itself at the top of the next column). If this happens, tighten the previous column to bring it back, or force an additional line of text over to the next column.

    Also make sure that Section and Sub-section headings have at least two lines of body text below them when they appear at the end of a page or column.

    Third Party Material

    In the event any element used in your material contains the work of third-parties, it is the author/presenter’s responsibility to secure any necessary permissions and/or licenses, and the authors will provide the same permissions in writing to the ACM. If the copyright holder requires a citation to a copyrighted work, it is the authors’ responsibility to include the correct wording and citations to the copyrighted material in their submissions.

    Images and Figures

    Below are some recommendations to ensure good print reproduction of the images, figures, and illustrations utilized in your submission.

    Colors and Black & White (Gray Scale) Print Testing. If you have any images in color, please print your paper out in black and white to ensure that the tones and screens used in your images or figures reproduce well in black and white, too. However, your images will appear in full color in any distributed electronic proceedings and in the ACM digital library.

    Vectorial and Raster Images Figures, charts, and diagrams should use a vector image format whenever possible (e.g. PDF, EPS, SVG). Alternatively, raster images (e.g. photographs) can be used – the resolution should be at least 300 or 600 dpi for quality reproduction. Please also consider the tradeoffs between lossless and lossy image formats. For instance, PNG images will not exhibit compression artefacts, but the file size might be larger than with the JPEG format. The compression ratio of JPEG images should be high enough so that compression artefacts are not visible.

    Rules/Lines. Rules used in your graphs, tables or charts must be at least 0.5 point in stroke and black for quality reproduction. Finer lines and points than this will not reproduce well, even if you can see them on your laser printed hardcopy when checked — your laser printers will usually have a far lower resolution than the imagesetters that will be used.

    Fonts. If your figure uses custom or any non-standard font, the characters may appear differently when printed in the proceedings. Remember to check your figure creation to ensure that all fonts are embedded or included in the figure correctly. Be sure that your images do not contain any Type 3 fonts.

    Transparency. If a figure or image is assembled from multiple images, the images must be embedded, and layers be flattened or grouped together properly in the file. Transparency must be flattened.

    Page Numbering, Headers, and Footers

    Your final submission MUST NOT contain any footer or header string information at the top or bottom of each page, nor any page numbering. The submissions will be paginated in a determined order by the chairs and page numbers added to the PDF during the compiling, indexing, and pagination process.

    The header must be set as per the ACM sigconf template - the top-left and top-right parts will contain (in alternance on each page) the conference name and information, the paper title, and/or the list of authors (or: the name of the first author followed by et al. if the string is too long). This should be automatically produced by the template.


    It is the contact or submitting author’s responsibility to be sure that any funding or special contribution acknowledgements are included in the final version submitted as required by any research, financial, or other grants received (by using the “Acknowledgements” section before the References section). See page 4 of the ACM sample pdf.

    Submitting the Required Files

    When your final version is ready, you need to upload your zip file with PDF and source files using HotCrp. As an accepted author, you have access to the proceedings section of HotCrp.

    You will see a confirmation screen after a successful upload to HotCrp. As well, a confirmation email will be sent to the contact’s email address entered on the submission page.

    If changes are needed, then you will be contacted by one of the publication chairs. In that case, you will receive specific information about how to revise your submission to meet requirements, and a new deadline will be given to submit the corrected material. You are required by the chairs to adhere to this new deadline so the publication is not delayed. Failure to implement the requested changes could result in the paper being withdrawn.

    ACM Template Checklist

    We are providing a checklist that summarizes the different items of the ACM template that must be included in your paper. As proceedings chairs, we have a large amount of papers that we must manually validate – the large majority of issues that we find in the camera-ready papers are ACM template items that were omitted, either mistakenly or to squeeze space in the draft submission. The proceedings chair would appreciate it if you could go through the following check-list prior to submitting your camera-ready paper. We thank you in advance for your cooperation.

    • Font page:
      • Title and authors
      • Abstract
      • CCS Concepts block
      • Keywords block
      • Statement on permission to make digital copies, ACM copyright information, ACM ISBN, DOI URL (conference location should be: Quebec QC, Canada, with the proper dates and conference name set)
      • ACM Reference Format block (containing the paper citation, number of pages, and DOI)
    • Formatting:
      • Headers are enabled starting on page 2 (this should be the default)
      • No footer, no pagination
      • Font size must be 9 or 10
      • The sigconf class option should be used (and not sigplan)
    • Page limit is respected (see above depending on the track/workshop)
    • References are properly formatted


    If you still have questions or problems about the copyrights and formatting requirements, please email and with the conference name (Middleware 2022) in the subject line.


    All times are Anywhere on Earth (AoE)
    Events Dates
    Full Paper Submission May 15th May 25th, 2022
    Rebuttal July 29th-August 1st, 2022
    Author Notification August 9th, 2022
    Revised Submissions September 9th, 2022
    Notifications of Decisions of Revised Papers September 23rd, 2022
    Camera Ready October 3rd, 2022


    All times are Anywhere on Earth (AoE)
    Events Dates
    Workshop Proposal Submission May 21st, 2022
    Industry Track Full Paper Submission June 30th July 15th, 2022
    Doctoral Symposium Submission September 15 October 9, 2022
    Demo & Poster Submission September 9th September 16th , 2022
    Conference November 7th – 11th, 2022


    All times are Anywhere on Earth (AoE)
    Events Dates
    Full Paper Submission November 20th, 2021
    Rebuttal February 1st-3rd, 2022
    Author Notification February 14th, 2022
    Revised Submissions March 14th, 2022
    Notifications of Decisions of Revised Papers March 28th, 2022
    Camera Ready April 15th, 2022